Multiple purpose chair



Jan. 29, 1963 Filed Dec. 19, 1960 G. N. KITSOPOULOS MULTIPLE PURPOSECHAIR 2 Sheets-Sheet 1 ATTORNEYS.

Jan. 29, 1963 a. N. KITSOPOULOS 3, 5,810

MULTIPLE PURPOSE CHAIR 2 Sheets-Sheet 2 Filed Dec. 19, 1960 .slIHUHU-IIII II llililliili'a INVENTOR.

( /24? I 9 BY ATTORNEYS.

3,075,810 MULTIPLE PURPOSE CHAIR George N. Kitsopoulos, 9139 CommercialAve, Chicago, Ill. Filed Dec. 19, 1960, Ser. No. 76,561 7 Claims. (Cl.297270) This invention relates generally to new multi-purpose chairconstructions and more particularly to improvements in a multipurposechair of the type which is selectively adjustable to various uses andpositions.

In my co-pending application entitled Multiple Purpose Chair, Serial No.809,029, filed April 27, 1959, and now Patent No. 3,028,196, grantedApril 3, 1962, there is disclosed a novel chair construction which isselectively adjustable for use as a regular chair, a low profilerelaxation or lounge chair, or a rocking chair. This versatility in myprimarily disclosed multiple purpose chair is provided by a constructionwhich comprises, in combination, a main frame, a seat of selectivelyadjustable height, a pair of selectively foldable support members which,in their horizontal position, serve to support a seat and which in theirvertical position serve as arm rests, and pivotable leg means which maybe adjusted with respect to the main frame to permit the chair to beused in a stationary position or to be used as a rocking chair.

It is a general object of this invention to provide a new multiplepurpose chair construction which is an improvement over the multiplepurpose chair disclosed in my copending application.

More particularly, it is an object of this invention to provide a newand improved multiple purpose chair having foldable arm support membersof selectively adjustable height.

It is another object of this invention to provide adjustable height armsupport members in a multipurpose chair, as above, formed with side padsadapted in one position thereof to support the chair seat and in anotherposition thereof to support adjustable height arm rests in such a manneras to provide greater sitting area at the chair seat.

It is still another object of this invention to provide a multipurposechair construction having a tubular main frame and selectively pivotableleg means wherein said main frame is formed with suitable recesses forreceiving the pivotable leg means in vested fashion when the chair isused as a stationary chair.

It is a further object of this invention to provide a new and improvedmultipurpose chair, as above, having adjustable locking meanscooperating with spring and pulley means for adjusting the position ofthe pivotable leg means whereby the rocking sweep of the chair may beselectively adjusted when the chair is used as a rocking chair.

It is a still further object of this invention to provide new andimproved means in a multipurpose chair, as described above, foradjusting the position of the pivotal leg means with respect to the mainframe whereby the pivotable leg means are moved outwardly from the mainframe to increase the rocking sweep automatically in response to theweight of the person sitting on the chair, and further, comprisingadjustable lock means cooperating with spring and pulley means to bringthe pivotable leg means towards the main frame for a smaller rockingsweep or for nesting within the recesses of the main frame when thechair is to be used as a stationary chair.

It is a still further object of this invention to provide a multipurposechair having a tubular main frame of lightweight metal constructionwherein the lowermost portion of the main frame is provided with arcuatewooden shoe means to protect the main frame base from wear and to give astronger rocking base on a lightweight tubular frame.

It is a still further object of this invention to provide a new andimproved multiple purpose chair construction as described above, whichis characterized by its extreme versatility, its durability and itshighly pleasing appearance.

With these and other objects in view, the invention consists in theconstruction, arrangement and combination of the various parts of thenovel multipurpose chair construction whereby the objects contemplatedare attained as hereinafter set forth. The various features of thenovelty which characterize this invention are pointed out withparticularity in the claims annexed to and forming a part of thisspecification. For a better understanding of the invention, however, andits advantages, reference is had to the accompanying drawing anddescriptive matter in which is illustrated and described a specificillustra-v tive embodiment of the invention.

In the drawing:

FIGURE 1 is a perspective view of one preferred illustrative embodimentof the invention in its low relaxation chair position and having thepivotable legs withdrawn to permit the chair to serve as a rockingchair;

FIGURE 2 is a perspective view of a preferred illus trative embodimentof this invention showing the chair with the seat in the regular chairposition and having the pivotable leg means recessed to permit the chairto servev as a stationary chair;

FIGURE 3 is a rear elevational view of the chair as shown in FIGURE 2 ofthe drawing;

FIGURE 4 is a top plan view of the chair shown in FIGURES 2 and 3 of thedrawing;

FIGURE 5 is a side elevational view of the invention, partly broken awayand partly in cross-section for pur poses of illustration, showing theadjustable higher 'arm' rests, the pivotable leg means, and the arcuateshoe features of the invention, taken substantially as shown along line55 of FIGURE 3; and

FIGURE 6 is a cross-sectional view illustrating the adjustable controlmeans for the pivotable legs as taken substantially as shown along line6-6 of FIGURE 3.

Referring now to the drawing, and more particularly to.

FIGURES l, 2 and 3 thereof, there is shown a specific illustrativeembodiment of the invention which is an improvement over the multiplepurpose chair shown in my copending application, S.N. 809,029. FIGURE 1of the drawing illustrates the multiple purpose chair of the presentinvention with the seat in the low relaxation position and with thepivotable legs withdrawn from the chair main frame to permit the chairto serve as a rocking chair. The multiple purpose chair of the presentinvention, as illustrated in FIGURES 2 and 3 of the drawing, shows theinvention with the seat in the regular chair position and with thepivotable legs recessed to permit the chair to serve as a stationarychair.

The illustrative embodiment of the present invention disclosed in FIGURE1 of the drawing comprises a main frame having a pair of spaced-apartbase members 12 and 14, respectively. Advantageously, each base membermay be substantially U-shaped, as shown, with the base members 12' and14 and which extends therebetween at the rear portion of the chair. Inaddition, the multiple purpose chair of the present inventionadvantageously is provided withsuitable supporting-cross bars on itsmainframe, such as the rearcross bar 18 extending between the basemembers 12 and it. The chair further comprises a substantiallyhorizontally positioned seat 20-which also is supported on" the mainframe 10 between the base members 12 and 14. Advantageously, the basemembers Hand 14 may be provided with suitable side cross-bars to receivethe seat 20, in the manner illustrated in my, co-pending application. Atthis point it is noted that there are many points of structuralsimilarity between the multiple purpose chair as disclosed in my earlierco-pending application, and the improvement as disclosed herein. Sincethese points of structural similarity do'notvform a part of the presentinvention, they will not bev disclosed'in detail herein, but rather thepresentimprovement invention will be disclosed in detail only withrespect to the improvement featureswhich are not shown in-my earlier copending application.

In accordance with an advantageous feature of the present invention, apair of side pads 22and 24- are pivoted to the opposite sides of theseat 20 such that the side pads may be pivoted outwardly in horizontal.position as shown in FIGURE 1 of the drawing or,alterna tively, pivotedto a vertical position to support the seat 20 as shown in FIGURES 2 and3 of the drawing.

When the side pads 22 and 24 are pivoted outwardly to ahorizontal'position, as indicatedin FIGURE 1, it

, on the other side pad 24.

As described in greater detail hereinb'elow, it is a feature of thisinvention that the height of'the arm rests, 26 .and 32 may be adjustedin a desired manner' with respect to the seat 20 by the operation ofsuitable finger levers 34 which serve to release an.arm'restratchet-locking means provided within the support sleeves 28and 30. comprising the present invention, the actuation of the finger.levers 34 serves to release the arm rests 1.26 and 3,2-so,thattheirfvertical position may be adjusted, as desired, and the release ofthefinger levers 34 looks the arm rest in place to provide maximumcomfort-tow the user of the chair.

.When, however, the chair is to be used vwithv the seat. 20 in theregularchair. position, as illustrated in FI URES 2, 3 and4, ratherthanin the low profile relaxa-.

tion position, as. illustrated in FIGURE 11, the side pads; 22. and 24are pivoted into their generally vertical 'po-- sition with the resultthat the support sleeves 28 and 30 and the arm rests 26 and 32 areplaced in a generally horizontal position; This is particularlyillustrated, for example, in FIGURE 3 of the drawing. It can'therebeseen' that when the side pads and the arm rests are In the use of themultiple purpose chair in the latter position, they serve to support theseat 20 in its raised, regular chair position. The seat 29advantageously is made vertically adjustable in any suitable manner,such as that disclosed in the earlier co-pending application with theresult that the seat 28 may be raised to the regular chair position andsupported thereat by the side pads 22 and 24 together with the arm rests26 and 32.

In accordance With a further feature of this invention, the main frameadvantageously is generally tubular in construction and the base members12 and 14 are provided with suitable recess portions, said recessesbeing shown as 34 and 36 respectively, capable of receiving thepivotable legs38 and 40 in a nested fashion.

As shown in FIGURES 1, 2 and 3 of the drawing, the pivotable leg 38 ispivoted to the base member 12, as at the pivot member 42, and thepivotable leg 40 is pivoted to the base member 14, as at the pivotmember 44. Each pivotable leg is provided with a suitable roller orcaster 46 at the lower extremity thereof and advantageously a horizontalcrossbar 48 may be provided between recesses 34 and 36, respectively, ofbase members 12 and 14. In this position, the rollers or casters d6 areplaced directly adjacent the base members with the result that rockingaction of the chair is prevented and the chair serves as a stationarychair.

In accordance with a feature of this invention, a rotatable lock knob 59is provided on the horizontal cross bar 18 of the main frame 10.Rotation of the lock knob" 50 serves to release the pivotable legs 38and40 such that the weight of a person sitting on the chair causes thepivotable legs 38 and 40 to move outwardly from their nested positionand away from the base members 12 and 14 of the chair. Advantageously,the sweep or degree of outward movement of such pivotable legs 38 and 40may be governed by the amount of rotation of the lock knob 54], saidrotation of lock knob 50 being transmitted to the pivotable legs bymeans of a unique arrangement within the horizontal cross bar 18 and bymeans of flexible connectors 52 and 54'associated with the pivotablelegs 38 and 40 respectively.

When it is desired to change the multiple purpose chair from a rockingchairas shown in FIGURE 1 with the pivoted legs extendedto a regularstationary chairas shown in FIGURE 2 with the pivotable legs nestedwithin the main framethe lock knob 55) is rotated in the oppositedirection cause the flexible connectors 54 to pull the pivotable legs 38and 40 closer to the base members 12 and 14 of the main frame. Thisinward movement of the pivotable legs 38 and 40 is governed by theamount of rotation of lock knob 56, and the total rotation of the lockknob causes the pivotable legs 38 and 40 to be fully nested within therecesses 3-:- and 36 of base members 12 and 1dof the main frame.

Turning now to FIGURES 5 and 6 of the drawing,

'there is illustrated in more specific detail, one preferred Thus, thearm rest 26, for example, is secured to a substantially U-shaped supportmember 56, the opposite arms of which are slidably disposed within thesupport sleeves 28 and 30, respectively. In accordance with a uniquefeature of this invention, the inner wall of the support sleeve 28 isprovided with a plurality of ratchet teeth 58 and the inner wall of thesupport sleeve 30 is provided with a plurality of ratchet teeth 60. Aportion of each arm of the U-shaped arm rest support member 56 is cutaway, as at 62, to expose the ratchet teeth 58 and 60 to the interior ofthe support member arms. A ratchet 64 is pivotally mounted within onearm of the arm rest support member, as by means of the pivot 66, so asto engage the ratchet teeth 58 therewithin. Similarly, a ratchet 68 ispivotally mounted within the other arm of the arm rest support member56, as by means of the pivot 70, so as to engage the ratchet teeth 60therewithin.

In accordance with the operation of this invention, each of the ratchets64 and 68 is connected by means of the flexible connecting member 72 tothe arm rest finger lever 34 which is pivotally mounted within the armrest support member 56 and which has a finger-engaging portion extendingthrough an opening in the arm rest support member so as to be manuallyactuatable to raise or lower the arm rest, as desired. Thus, it can beseen that the two ratchets 64 and 68 are connected by means of theflexible connector 72 to a suitable point 74 on the finger lever 34, andwhen the finger lever is manually actuated about its pivot 76, theflexible connector 72 pivots each of the ratchets out of engagement withits associated ratchet teeth to permit the arm rest 26 to be selectivelyadjusted with respect to the seat 20.

Those skilled in the art will appreciate that in the particularillustrative embodiment disclosed in FIGURE of the drawing, the arm rest26 may be pulled upwardly without actuation of the finger lever 34, dueto the angular relationship between the ratchet teeth and the ratchetand that the arm rest will be locked into any position into which it ispulled. Conversely, when the arm rest 26 is to be lowered, it merely isnecessary to actuate the finger lever 34 to release the ratchets 64 and68, and the arm rest 26 may be lowered to any desired position. Whenthis desired position is reached the finger lever 34 is released and theratchets engage the ratchet teeth to lock the arm rest in place. It willbe obvious to those skilled in the art that the ratchets 64 and 68 maybe provided with suitable spring return means (herein not shown) andeach ratchet may be supplied with a stop member to limit its rotation,such as the stop member 80 associated with ratchet 64 and the stopmember 82 associated with the ratchet 68.

In accordance with a further feature of this invention, as particularlyillustrated in FIGURES 5 and 6 of the drawing, the position of thepivotable legs 38 and 40 may selectively be adjusted with respect to themain tubular frame 12. This advantageous result is provided by oneillustrative embodiment of the invention which comprises a rotatablelock knob 50 which is journaled within a housing collar 84 secured tothe back of the rear cross bar 18. Preferably, the shaft 86 of the lockknob 50 is provided with an internal thread adapted to be operativelyassociated with a threaded stem 88 such that rotation of the lock knob50 causes the threaded stem 88 to be moved into or out of the rear crossbar 18 in a manner determined by the direction of rotation of the lockknob.

A pair of lock arms 90 and 92 are pivotally secured at one end thereofto the threaded stem 88, as by means of the pivot member 94. Each lockarm is arcuate in shape such that the linear movement of the threadedstem 88 in response to the rotation of lock knob 50 causes the lock arms90 and 92 to be pivotally rotated in opposite directions about the pivotmember 94. This operation is facilitated by means of a pair of coilsprings connected between the lock arms and the pivot member 94. Thus,as shown in FIGURE 6 of the drawing, a coil spring 96 is secured betweenthe lock arm 90 and a point 98 on the stop member 100 around the pivot6. member 94. Similarly, a coil spring 102 is connected between the lockarm 92 and the point 98.

The operation of this feature of the invention can now be understood bythose skilled in the art. The normal compressive forces of the coilsprings 96 and 102 urge the lock arms and 92 from their outermostposition, as shown in solid lines in FIGURE 6, to their innermostposition, as shown in broken lines in FIGURE 6. When the lock knob 50 isrotated to move the threaded stem 88 further into the cross bar 18, thelock arms 90 and 92 are pivoted outwardly to their limiting pointagainst the backing plate 104 secured to the interior wall of the crossbar 18. When the lock knob 50 is rotated in the opposite direction, thelock arms 90 and 92 are pivoted inwardly to their limiting position asshown in broken line form in FIGURE 6.

In accordance with a feature of the invention, the movement of the lockarms 90 and 92 may be used to control the rocking sweep of the pivotablelegs 38 and 40. To this end a flexible connector 54 is secured to theouter end of the lock arm 90, as by means of the loop 106 about the pin108. This flexible connector 54 is threaded past the rotatable trackpulley 110 within the rear cross bar 18, and the rotatable track pulley112 within the back rest 16 of the main frame, to the roller bearing 114and the track pulley 116 within the pivotable leg 38, where itterminates in the loop 118 secured to the pin 120 within the pivotableleg. In a similar fashion, the flexible connector 122 is secured to thelock arm 92 as by means of the loop 124 and the pin 128, and thisflexible connector is threaded past the track pulley within cross bar18, and track pulley 132 within back rest 16, to a roller bearing andfurther track pulley within the pivotable leg 40 where it is securedthereto.

In the operation of the invention, when an adjustment of the rockingsweep of the pivotable legs is desired, it will be appreciated that therotation of lock knob 50 to pivot the lock arms 90 and 92, in the mannerdescribed heretofore, serves to permit the pivotable legs 38 and 40 tobe moved outwardly away from the main frame or inwardly closer to themain frame, as desired. Manifestly, when the lock knob 50 is rotated topermit greater rocking sweep, the outward movement of the pivotable legsis facilitated by the weight of the person sitting on the chair.

Thus, the downward pressure on seat 20 due to the weight of the usercauses the pivotable legs 38 and 40 to roll outwardly away from the mainframe to the limiting position determined by the amount of rotationgiven lock knob 50. This is illustrated in broken line form in FIGURE 5of the drawing. Conversely, rotation of the lock knob 50 in the otherdirection causes the pivotable legs to be drawn inwardly to the limitingposition as shown in solid line form in FIGURE 5 wherein the pivotablelegs are nested within the recesses of the base members 12 and 14 of thechair.

In accordance with a still further feature of this inven tion, thelowermost portions of the main frame, i.e., the bottoms of the basemembers 12 and 14, are provided with strengthening means such that themain frame may be made with a tubular lightweight metal construction andstill provide a strong rocking base when the chair is used as a rockingchair. To this end, each base member 12 and 1 4 advantageously isprovided with an arcuate shoe 136, preferably formed of some materialsuch as wood, plastic or the like. In the construction of the invention,each arcuate shoe 136 is fitted within the recess formed by the tubularframe and is secured thereto by any suitable means, such as thefasteners 138. It can be seen that the arcuate shoe 136 is slightlygreater in the vertical dimension than the base members 12 or 14 so asto insure contact between the arcuate shoe and the surface upon whichthe chair rests. Thus, it can be seen that the tubular main frame may beof a lightweight metal construction since the arcuate shoe means servesto protect the main frame base from wear and gives a stronger rockingbase' with constructions other than the particular illustrativeembodiments described herein, and that various changes and-modificationsmaybe made without departing from the-principles ofthe invention-Therefore, it is intended to cover in theappended claims any changes andmodificadons-which fall within the true'spirit and scope of thisinvention.

What is claimed asthe invention is:

1. A multiple purpose chair having a plurality of selectively adustablepositions comprising a tubular main frame, a seat adapted to besupported at a selectively adjustable height on said main frame, meansassociated with said seat for enabling the seat to be raised and loweredwith respect to saidframe, said means comprising a support memberpivotally secured to each side of said main frame, said support membersbeing adapted to be folded in horizontal position for supporting theseat when the chair is serving as a regular chair and being furtheradapted to be unfolded into a vertical position for permitting the seatto be lowered therebetween when the chair is serving as a low profilerelaxation chair, an arm rest on each support member, manuallyactuatable means for enabling each arm rest to be raised or lowered withrespect to its support member, adjustable leg means pivotally secured tothe rear of said main frame, said main frame defining recesses forreceiving said adjustable leg means in nested fashion when the chair isserving as a stationary chair, adjustable lock means for releasing saidadjustable leg means to permit the latter to bemoved outwardly away fromthe main frame when the chair is serving as a rocking chair, actuatingmeans operatively associated with said adjustable lock means and saidadjustable leg means to cause the latter to be moved inwardly towardsthe main frame a desired amount for adjusting the rocking sweep of saidchair, and for nesting said leg means within the main frame recesses toenable the chair to serve as a stationary chair, and arcuate wear shoemeans in the base of said main frame to protect said main frame fromwear and to give a stronger rocking base to said chair.

2. A multiple'purpose chair having a plurality of selectively adjustablepositions comprising a tubular main frame, a seat adapted to besupported at a selectively adjustable height on said main frame, meansassociated with said seat for enabling the seat to be raised and loweredwith respect to said frame, said means comprising a support memberpivotally secured to each side of said main frame, said support membersbeing adapted to be folded in horizontal position for supporting theseat when the chair is serving as a regular chair and being furtheradapted to be unfolded into a vertical position for permitting the seatto be lowered therebetween when the chair is serving as a low profilerelaxation chair, adjustable'leg means pivotally secured to the rear ofsaid main frame, said main frame defining recesses for receiving saidadjustable leg means in nested fashion when the chair is serving as astationary chair, adjustable lock means for releasing said adjustableleg means to permit the latter to be moved outwardly away from the mainframe when the chair is serving as a rocking chair and, actuating meansoperatively associated with said adjustable lock means and saidadjustable leg means to cause the latter to be moved inwardly towardsthe main frame a desired amount for adjusting the rocking sweep of'saidchair, and for nesting said leg means within the main frame recesses toenable the chair to serve as a stationary chair.

3. A multiple purpose chair having a plurality of selectively adjustablepositions comprising a tubular main frame,.a seat adapted to besupported at a selectively 8 adjustable height on said main frame, meansassociatedwith said seat for enabling the'seat to be raised and loweredwith respect to said frame, said means comprisinga support memberpivotally secured to each side' ofsaid mainframe, said support membersbeing adapted to be folded in horizontal position for supporting theseat when the chair is serving as aregular chair and beingfurtheradapted to be unfolded into a vertical position for permitting the seatto be lowered thcrebetween when the chair is serving' as-a low profilerelaxation chair, adustable leg.

means pivotally secured to the rear of said main frame,

adjustable lock means for releasing said adjustable leg.

means to permit the latter to be moved outwardly away from the mainframe when the chair is serving as a rock ing chair, and actuating meansoperatively associated with said adjustable lock means and saidadjustable leg means to cause the latter to be moved inwardly towardsthe main frame a desired amount for adjusting the rocking sweep of saidchair, and for placing said leg means in juxtaposition with said mainframe to enable said chair to serve as a stationary chair.

4. A multiple purpose chair having a plurality of selectively adjustablepositions comprising a tubular main frame, a seat adapted to besupported at a selectively: adjustable height on said main frame, meansassociated with said seat for enabling the seat to be raised and loweredwith respect to said frame, adjustable leg means pivotally secured tothe rear of said main frame, said main frame defining recesses forreceiving said adjustable leg means in nested fashion when the chair isserving as a stationary chair, manually adjustable lock meansforreleasing said adjustable leg means to permit the latter to be movedoutwardly away from the main frame when the chair is serving as arocking chair, and actuating means operatively associated with saidadjustable lock means and said adjustable leg means to cause the latterto be moved inwardly towards the main frame a desired amount foradjusting the rocking sweep of said chair, and for nesting said legmeans within said mainframe recesses toenable said chair to serve as astationary chair.

5. A multiple purpose chair having a plurality of selectively adjustablepositions comprising a main frame, a seat adapted to be supported at aselectively adjustable height on said main frame, means associated withsaid seat for enabling'the seat to be raised and lowered with respect-tosaid frame, said means comprising a support pad pivotally secured toeach side of said main frame; each support pad being adapted to befolded into a first position for supporting the seat when the chair isserving as a regular chair and being further adapted to be unfolded intoa second position for permitting the seat to be lowered therebetween toprovide additional sitting area when the chair is serving as a lowprofile relaxation chair, an arm rest support on each support pad, saidarm rests'being hidden when the support pads are folded into said firstposition to thereby provide the chair with an attractive appearance,manually actuatable means for enabling each arm rest to be raised orlowered with respect to its support pad, and adjustable leg meanspivotally secured to the rear of said main frame for adjusting therocking sweep of said chair when the'latter is serving as a rockingchair or for enabling the chair to be' used as a stationary chair.

6. A multiple purpose chair having a plurality of selectively adjustablepositions comprising a main frame, a seat adapted to be supported at aselectively adjustable height on said main frame, means associated withsaid seat for enabling the seat to be raised and lowered with respect tosaid frame, adjusable leg means pivotally secured to the rear of saidmain frame, said main frame defining recesses for receiving saidadjustable leg means in nested fashion when the chair is serving as astationary chair and, adjustable lock means for releasing saidadjustable leg means to permit the latter to be moved-out- 9 wardly awayfrom the main frame when the chair is serving as a rocking chair.

7. A multiple purpose chair having a plurality of selectively adjustablepositions comprising a main frame, a seat adapted to be supported at aselectively adjustable height on said main frame, means associated withsaid seat for enabling the seat to be raised or lowered with respect tosaid frame, adjustable leg means pivotally secured to the rear of saidmain frame to permit the chair to serve as a stationary chair or as arocking chair, and arcuate wear shoe means in the base of said mainframe to protect said main frame from wear and to give a strongerrocking base to said chair.

References Cited in the file of this patent UNITED STATES PATENTS WhiteJuly 29, 1879 Newell Nov. 16, 1886 Holt Sept. 21, 1897 Collignon Feb.19, 1901 Ramsay Dec. 8, 1903 Rick Jan. 21, 1919 Wagner Apr. 19, 1921Kurnick June 27, 1922 Booth Feb. 13, 1951 Sprung Apr. 15, 1952 MorelandDec. 25, 1956 Lavter-bach July 22, 1958

7. A MULTIPLE PURPOSE CHAIR HAVING A PLURALITY OF SELECTIVELY ADJUSTABLEPOSITIONS COMPRISING A MAIN FRAME, A SEAT ADAPTED TO BE SUPPORTED AT ASELECTIVELY ADJUSTABLE HEIGHT ON SAID MAIN FRAME, MEANS ASSOCIATED WITHSAID SEAT FOR ENABLING THE SEAT TO BE RAISED OR LOWERED WITH RESPECT TOSAID FRAME, ADJUSTABLE LEG MEANS PIVOTALLY SECURED TO THE REAR OF SAIDMAIN FRAME TO PERMIT THE CHAIR TO SERVE AS A STATIONARY CHAIR OR AS AROCKING CHAIR, AND ARCUATE WEAR SHOE MEANS IN THE BASE OF SAID MAINFRAME